Combined stove and water-heater.



No; 685,835. Patented Novr 5,1901.

A. anon.

COMBINED STOVE ANDlWATEB HEATER.

, (Application filed Jan. 8, 1901. (N o M o d el.)

W/ A/ESSEZ) l izigilaz UNITED STATES PATENT OFFICE.

ANDREW GROH, OF CLEVELAND, OHIO.

COMBINED STOVE AND WATER-HEATER.

SPECIFICATION forming part of Letters Patent No. 685,835, dated November 5, 1901. Application filed lTanuary 8, 1901. Serial No. 42,491. (No model.)

To (ZZZ whom it 72mg concern:

Be it known that I, ANDREW GROH,'a resident of Cleveland, Ohio, have invented certain new and useful Improvements in a Oombined Stove and Water-Heater; and Ido hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the artto which it pertains to make and use the same.

This invention relates to improvements in a combined stove and Water-heater. I

The object of my invention is to provide a combined stove and water-heater especially adapted for use in engine-houses,livery stables, and similar places where an occasional use of hot water is necessary, but where it is not desirable or convenient to maintain a constant supply of the same.

My invention therefore consists, in combination with a heating-stove of suitable style and design, of a self-draining watercoil, means for conducting the heat from said stove around said water-coil, and means for forming an air-chamber between said water-coil and the direct heat from said stove.

My invention further consists in the features of construction and combinations of parts hereinaftertdescribed in the specification, illustratedi the drawings, and pointed out in the claims;

Referring tetthe drawings, Figure I is a central section ofiiiny stove with the water-heater in side elevation. Fig. II is a section on lines II II, Fig. I.

In the accompanying drawings,a represents the lower portion of a stove,including the fire box and ash-pit. Y

19 represents the upper part or drum of the stove. In the side of the drum b is formed a flue-hole b. A casing c is secured to the drum over this flue-hole, and a damper c is hinged in the lower part of the casing 0, adapted to close the flue-hole b and prevent the flames from the stove passing into the chamber formed by the casing c. A cover-plate d is secured on the top of the drum 1) and extends over and forms the top of the casing 0 also. In this plate are two flue-holes d and 61 over the drum and easing, respectively.

The main flue e extends from the flue-hole d in the top of the drum to the chimney, and it is provided with a pivot-damper of usual construction. A secondary flue f is secured, over the flue-hole d in the casing c and extends up a suitable distance and joins the main flue c. In the secondary flue is located a coil of pipe which constitutes the water-boiler. This coil is constructedas follows: The pipe 9 enters the casing near its top and extends vertically the full height of the coil. It then turns down in the form of a square spiral. I have found in practice that it is not possible to form as close a coil as I desire by bending the pipe upon itself without cracking or otherwise injuring the pipe. Therefore in order to form the coil I take a number of small pieces of pipe g of equal size and form external screw threads on the ends thereof. I then assemble them together by means of internally-screwthreaded elbow-joints h.

The object of the casing c is to provide an air-space or air-chamber between the direct heat from the stove and the water-coil when the damper e is closed.

The end of the pipe g may be connected with the water-supply in any suitable manner, as by a length of hose. Another length of hose may be attached to the pipe 9 When the water is turned on, it enters the pipe 9, rises to the top, and then flows down the spiral portion and out through the pipe 9 Owing to the peculiar construction of my boiler, all the water will drain out when the water-supply is shut off. 7

When it is desired to obtain hot water, the pipe 9 is connected with the water-supply, the damper c is turned back into the casing c, and the damper e in the main flue is closed. The flames and heat from the stove pass up through the casing 0 around the water-boiler, and the water is quickly heated. When sufficient hot water has been secured, the damper e in the flue e is opened and the damper c is turned upward, closing the opening in the drum. Theheat and flames then-pass up the flue e, and the casing 0 forms an air-cha1nher which prevents the direct heat from the stove reaching the water-boiler. The watersupply is then disconnected, and as the water-boiler will completely drain itself there is ing located on the outside of the stove-body around the side flue-hole and extending to the upper end of the stove-body, said casing having a flue-hole at its top, a damper located in the casing and adapted to close the side flue-hole, a main flue leading from the top of said stove-body, a secondary flue leading from the top of the air-chamber-forming casing and arranged and projecting upwardly above the stove-body at one side of the main flue, a damper located in the main-flue, and

a coil of water-pipe located in the secondary flue above the air-chamber casing, substantially as and for the purpose set forth.

2. The combination with a stove-body having two flue-holes, one formed in its top and the other in its side, near the top, an air-- chamber-forming casing arranged on the outside of the said stove-body around the side flue-hole, said casing having a flue-hole at its top, a damperlocated in said casing and adapted to close the flue-hole in the side of the stove-body, a main flue leading from the top of the said stove-body,a second flue leading from the top of the air-chamber and joining the main flue, a distance above the stove-body, a damper located in the main flue, and a self draining coil of water-pipe located in the secondary flue above the said air-casing, sub

stantially as described, and for the purpose set forth.

3. The combination with a stove-body having two flue-holes, one formed in its top and the other in its side near the top, an air-chamber-forming casing arranged on the outside of the said stove-body around the side fluehole, said casinghaving a flue-hole at its top, a damper located in said casing and adapted to close the flue-hole in the side of the stovebody, a main flue leading from the top of said stove-body, a secondary flue leading from the top of the air-chamber, a damper located in the main flue, and a self-draining coil of waterpipe located in the secondary flue, said coil comprising a vertical pipe communicating at its upper end with and surrounded by a spiral coil consisting of a number of equal lengths of pipe secured together byelbowjoints, substantially as described, and for the purpose set forth. 7

4. The combination'of a stove-body having two flue-holes, one formed in its top and the other formed in its side, an air-chamber-forming casing located on the outside of the stovebody around the side flue-hole and extend- 1 ing to the upper end of the stove-body, said casing having a fine-hole at its top, a damper located in the casing and adapted to close the side flue-hole, a main flue leading from the topof said stove-body, a secondary flue leading from the top of the said air-chamberforming casing and arranged and projecting upwardly above the stove-body at one side of the main flue, a damper for regulating the flow through the main flue, and a coil of water-pipe extending into the secondary flue, substantially as and for the purposeset forth.

5. The combination of a stove-body having two flue-holes, one formed in its top and the other in its side, an air-chamber-forming casing located on the outsideof thestove body around the side flue-hole, said casing having a flue-hole at its top, a dam per located in the casing and adapted to close the side flue-hole,-

a main flue leading from the top of the said stove-body, a secondary flue. leading from the top of theair-chamber-formingcasing, a damper for regulating the flowthrough the main flue and a coil of water-pipe extending into the secondary flue, substantially as and for the purpose set forth.

6. The combination of a stove-body having two flue-holes, one formed in its top and the other in its si de,an air-chamber-forming casing located on the outside of the stove-body around the side flue-hole, said casing having a flue-hole at its top, a damper for regulating the flow through the side flue-hole, a main flue leading from the top of the said stovebody, a secondary flue leading from the top of said air-chamber-forming casing, a damper for regulating the flow through the main flue, and a coil of water-pipe mounted above and supported by the said air-chamber-forming casing and arranged so as to be heated by the passage of flame and hot air through the secondary flue, substantially as and for the purpose set forth. 7

7. The combination of a stove-bod y having two flue-holes, one formed in its top and the other in its side, a damper for regulating the flow through the topflue-hole, a damper for regulating the flow through the side flue-hole, an air-chamber-formingcasinglocated on the outside of the stove-body around the side flue-hole, said casing having a flue-hole, a main flue leading from theflue-hole in the top of the said stove-body, a secondary flue leading from theflue-hole in the said airchamber-forming casing, and a coil of waterpipe located in the secondary flue, substantially as described and for the purpose set forth. Y

Signed by me at Cleveland, Ohio, this 22d day of December, 1900.

ANDREW GROH. Witnesses:

VICTOR C. LYNCH, A. H. PARRATT. 

